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Finding the Fourth Proportional to 80,291.66, 110,740.10 and 54,818.51

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Solution

The fourth proportional to 80,291.66, 110,740.10 and 54,818.51 is: 75,606.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,291.66 : 110,740.10 = 54,818.51 : x
  2. Step 2: Convert to fraction form
    80,291.66/110,740.10 = 54,818.51/x
  3. Step 3: Cross multiply
    80,291.66x = 110,740.10 × 54,818.51
  4. Step 4: Simplify right side
    80,291.66x = 6,070,606,451.46
  5. Step 5: Solve for x
    x = 6,070,606,451.46/80,291.66
  6. Step 6: Final answer
    x = 75,606.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.